1. Faculty of Health and Occupational Studies Department of Caring Science University of Gävle Gävle Sweden
2. Department of Neurobiology, Care Sciences and Society Division of Clinical geriatrics Karolinska Institutet Stockholm Sweden
3. School of Health, Care and Social Welfare Mälardalen University Västerås Sweden
4. Health Services Research Department of Public Health and Caring Sciences Uppsala University Uppsala Sweden
5. Centre for Clinical Research Västmanland County Hospital Västerås Sweden
6. Unit of Anaesthesiology and Intensive Care Södersjukhuset Karolinska Institutet Stockholm Sweden